JPS5668873A - Picture signal binary system - Google Patents
Picture signal binary systemInfo
- Publication number
- JPS5668873A JPS5668873A JP14475679A JP14475679A JPS5668873A JP S5668873 A JPS5668873 A JP S5668873A JP 14475679 A JP14475679 A JP 14475679A JP 14475679 A JP14475679 A JP 14475679A JP S5668873 A JPS5668873 A JP S5668873A
- Authority
- JP
- Japan
- Prior art keywords
- signals
- picture element
- signal
- binary
- multiplier
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Character Input (AREA)
- Facsimile Image Signal Circuits (AREA)
Abstract
PURPOSE: To make the signal binary accurately, by determining a slice level according to the leakage rate of picture element signals surrounding a picture element to facilitate the characters of a narrow stroke interval binary.
CONSTITUTION: Counter 6 is operated by the start signal, and AND gates 31W3N to gate picture element signals 21W2N surrounding picture element signal V0, which should by made binary, are controlled through gate switching control circuit 5 by the count value of counter 6, and signals 21W2N are applied to multiplier 8 through OR gate 4. The count value of counter 6 is input as the address to one input of multiplier 8, and the output of ROM7 where the leakage rate of each sensor is stored is applied, and signals 21W2N and leakage rates are operated correspondingly to signals 21W2N by multiplier 8, and the output is supplied to addition average value calculating circuit 9. The average value of signals 21W2N multiplied by leakage rates successively is obtained by circuit 9 and register 10 to determine a slice level, and the slice level is compared with picture element signal V0 in comparing circuit 11 to make the signal binary accurately.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14475679A JPS5668873A (en) | 1979-11-08 | 1979-11-08 | Picture signal binary system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14475679A JPS5668873A (en) | 1979-11-08 | 1979-11-08 | Picture signal binary system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5668873A true JPS5668873A (en) | 1981-06-09 |
Family
ID=15369650
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14475679A Pending JPS5668873A (en) | 1979-11-08 | 1979-11-08 | Picture signal binary system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5668873A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58202666A (en) * | 1982-05-21 | 1983-11-25 | Ricoh Co Ltd | Binary coding system |
JPS59175281A (en) * | 1983-03-11 | 1984-10-04 | ウオング・ラボラトリ−ズ・インコ−ポレ−テツド | Adaptive threshold for treating image |
JPS6058776A (en) * | 1983-09-12 | 1985-04-04 | Ricoh Co Ltd | Picture reader |
JPS6080368A (en) * | 1983-10-11 | 1985-05-08 | Ricoh Co Ltd | Binary coding device of picture signal |
JPS648488A (en) * | 1987-06-30 | 1989-01-12 | Sharp Kk | Image signal binarizing device |
-
1979
- 1979-11-08 JP JP14475679A patent/JPS5668873A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58202666A (en) * | 1982-05-21 | 1983-11-25 | Ricoh Co Ltd | Binary coding system |
JPS59175281A (en) * | 1983-03-11 | 1984-10-04 | ウオング・ラボラトリ−ズ・インコ−ポレ−テツド | Adaptive threshold for treating image |
JPS6058776A (en) * | 1983-09-12 | 1985-04-04 | Ricoh Co Ltd | Picture reader |
JPS6080368A (en) * | 1983-10-11 | 1985-05-08 | Ricoh Co Ltd | Binary coding device of picture signal |
JPS648488A (en) * | 1987-06-30 | 1989-01-12 | Sharp Kk | Image signal binarizing device |
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